.card-enter {
  opacity: 0;
}
.card-enter-active {
  opacity: 1;
  transition: opacity 300ms;
}
.card-enter-done {

}
.card-exit {
  opacity: 1;
}
.card-exit-active {
  opacity: 0;
  transition: opacity 300ms
}
.card-exit-done {
  opacity: 0;
}